I have a 78 bronco with the 351 M in it . My motor will need replaced or rebuilt soon. I found a 351M in a 1980 2 wheel drive truck. I was just wondering if anyone knew if it would be the same or would I have to use my oil pan or anything else to put it in my bronco.

 

motor will be the same, just use all of your accessories from your current motor on the newer motor.

 

The 351m and the 400 are the same block, just the stroke is different, like a 289/302 or the 240/300. Everything should bolt right up.